lib/libalpm/md5.h

   1 /*
   2  *  RFC 1321 compliant MD5 implementation
   3  *
   4  *  Copyright (C) 2006-2007  Christophe Devine
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef _MD5_H
  21 #define _MD5_H
  22
  23 /**
  24  * \brief          MD5 context structure
  25  */
  26 typedef struct
  27 {
  28     unsigned long total[2];     /*!< number of bytes processed  */
  29     unsigned long state[4];     /*!< intermediate digest state  */
  30     unsigned char buffer[64];   /*!< data block being processed */
  31 }
  32 md5_context;
  33
  34 /**
  35  * \brief          Output = MD5( input buffer )
  36  *
  37  * \param input    buffer holding the  data
  38  * \param ilen     length of the input data
  39  * \param output   MD5 checksum result
  40  */
  41 void md5( unsigned char *input, int ilen, unsigned char output[16] );
  42
  43 /**
  44  * \brief          Output = MD5( file contents )
  45  *
  46  * \param path     input file name
  47  * \param output   MD5 checksum result
  48  *
  49  * \return         0 if successful, 1 if fopen failed,
  50  *                 or 2 if fread failed
  51  */
  52 int md5_file( const char *path, unsigned char output[16] );
  53
  54 #endif /* md5.h */